[HBASE-7084] Raise default minimum region split size

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Duplicate
• Affects Version/s: 0.95.2
• Component/s: regionserver
• Assignee: Unassigned
• Reporter: Harsh J
• Created: 02/Nov/12 14:10
• Updated: 14/Jun/22 22:37
• Resolved: 12/Aug/13 02:33

Description

Several times I've seen folks mentioning to raise region split sizes from the default 256m to something more suitable (mostly folks say 1 GB, sometimes 2 GB, more than other options), in order to control the # of regions explosion once they begin heavy-hitting the tables.

Perhaps it makes sense to raise the default itself, since there are ways to bring it down per-table if needed by some use-cases?

Opening this as a discussion first, since this "too many regions" trouble is quite prevalent among newcomers.